I was paying $50-$75 a month for electricity, then I got married. All of a sudden, paying a $200+ electric bill, After about three years, of this, I found out that, My brother next door who is using central air(I don't use ac.) pays less than $150 a month.
I recently installed a new pressure switch, because of erratic pressure. while setting the pressure adjustment on the new pressure switch, I noticed that it would cycle, about every 5 to 10 minutes, with no faucet in the house on and no toilet running. I then searched for leaks, extensively and found no leaks. This made me suspect the check valve, between the pump and pressure tank.
BINGO!! It was so bad that I could blow through it both ways, WITH LUNG PRESSURE ONLY! After installing a new $16 check valve, for once I am actually looking forward to my next electric bill.